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s. D. ENGLE, or HAZLETON, PENNSYLVANIA.

Letters Patent No. 54,135, dated April 24, 1866, reissue No. 2,907, dated Varela 3,1, 1868.

IMPROVEMENT IN WATCHES?.

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To ALL wHoM I'r MAY ooNeERN:

Be it known that I, S. D. ENGLE, of Hazelton` in the county of Luzerne, and State of Pennsylvania, have invented u. new and useful Improvement in Watches; and I do hereby declare that the following is a full, clear, and exact descriptioh thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming'part of this specification.

The present invention mainly relates to the cases of `that class of watches known as hunting-watchesff the object being to more perfectly exclude dustl and dirt from the working parts or movement of the watch, it` consisting in providing` a separate and independent box or case from the ordinary watch-ease for the movement' of the watch, in which box` the movement isi-secured in the usual manner now practised for fastening it in the watch-case, the -said movement-box being fastened in the watch-case in any proper'manner to allow it to be easily and readily removed therefrom when'so desired. It also consists in so packing the apertures in the back -plate or cap of the watch, through-which the key adapted to the watch is' inserted, for the purposes of winding up and setting the watch, that while no obstacle is presented to the free insertion therein and removal -therefrom of such key, yet the entrance of dust or 'dirt through said apertures to the movement or working-parts of the watch will be entirely prevented. In the accompanying plate of drawings, my improvements in watches are illustrated- Figure 1 being a partial section and edge view ot' the movement-boxer casing, with the ordinary watchcase shown in cross-section.

VFigure 2, a vie'w of one face of the watch', with thecrsytal removed therefrom.

Similar letters of reference indicate corresponding parts.

A, in the drawings, represents my improved box or casing for a watch-movement. This box consists of authin ring, B, made of suitable'metal or other material of a sufficient size to embrace and enclose vthe periphery or edge of the watchmovement to which it is to be applied, and also oi' snob a width as to slightly project beyond each of its facesI or plates, between which the working parts are arranged, thewatoh-movement being secured in the ring B, in the usual manner now practised for securing itin any of the ordinary watch-cases,

andv therefore needing no particular description of it herein. Over the edge a of the ring B the rim or ring C,

in which the crystal is secured, nicely fits, and over the other edge b, similarly ts the back plate or cap F, as in 'ordinary watch-cases. G, a watch-case, of the class employed for hunting-watches, it being constructed similarly thereto, in the central or body portion H of which the ringB of the watch-movement box is' placed and confined by means of projecting studs or pins c c c, on and .around the said ring B, which studs fit in an annular" groove or recess, alhof the case-body H, suitable notches ff being made in the said 'body to allow the said studs to enter the body-groove d, before'referred to.

By inserting the movement-box within the watch-case, as above explained, it is obvious that it cannot possibly become disengaged therefrom by the ordinary use ofthe watch, while at the samew hen desired to remove the works, it can beireudily and easily done. v l

From the above-description it is readily apparent' that by inserting the watch-movement within a box, separate and independent from the ordinary watch-case therefor, the entrance of dust to the works is, in a great measure, if not entirely, prevented, a quite important' desideratum in watches, it being secured with but a triiiing additional cost and increase in'the size of the watch-case. In lieu of attaching the crystal ring and back plate or cap to the movementring B, as explained, they may be hinged to the main or body portion H of the watch-case, but in such a position that when closed they will it over, as before, the projecting edges of s the movement-ring B.

In addition to the above, my improvements, as before stated, relate to a. packing,. H, for` the key-holes of the watch, it consisting in forming, around the key-hole g, and upon the under side ot' the back plate, in

-mhich it is made, a cup, L, by agaised lip or' ange, h2, in which it is fitted, a washer or bushing, t', made of buckskin or any 'other suitable material, adapted for a packing, having an aperture, m, through its centre, of sufficient size t'o allow the key to be placed in the watch, which bushing z', when the back plate isclosed, ts' against the back-movement plate around the spindle, upon which the key fits, thereby tightly closing and packing the key-hole, as is obvious, and thus preventing the entrance of dirt or dust to-thewatch-works. VvIf a. raised edge or lip is formednround the spindle upon which the wateh-key'is plaoed, as, for instance, in the watches made by the AmericunWeichv Company," so known, the key-hole `bushing then v,tightly packs the space betweon'such raised lip and the underside of the case back plete, thus accomplishing the snmeresuit;

as before. v 4

Hearing describedjny invention, I claim as new, and desire to secure by Letters Patent- 1. The employment oi'v a. box or supplemental oase, 13,170 receive the movement of' n. watch, secured in l the external or principal onse of the watch, by means of studs or pins and n groove, for .the purpose herein set forth. Y

2. I claim the cup h, with its flange h2, and washer fi, arranged with the key-hole g, in the manner and for the purpose herein described.-

S. D. ENGLE.

Witnesses MAHLON ALLEBAOH, JOSEPH GRENAWALT. 

